摘要:
An anti-rotation duct restraint system and methods of using this system for connecting flexible ducts are described. The anti-rotation duct restraint system includes a flexible cable having a swaged cable end and a flattened threaded cable end, wherein the swaged cable end can be aligned with a though-hole in a first flange of a first flexible duct, and the flattened threaded cable end, along with a mating metal bushing, can be aligned with a through-hole in a second flange of a second flexible duct. The system also includes a nut, which can be threaded onto the flattened threaded cable end and secured using a single tool with one hand, for connecting the first flexible duct with the second flexible duct.
摘要:
A spherical flange assembly is disclosed. The spherical flange assembly comprises a seat member, a heel member, a seal gland and at least one nut and bold assembly. The seat member includes a concave portion. The heel member includes a convex portion and a seal gland opening. The seal gland is disposed within the seal gland opening.
摘要:
A connector is provided for coupling a first conduit to a second conduit. The connector includes a first hub configured to connect to the first conduit and a second hub configured to connect to the second conduit. A flexible body is configured to sealingly connect to the first hub and the second hub. At least one clamp is provided for securing the flexible body to the first hub or the second hub. The flexible body includes an end having an annular groove therein to form an inner portion of the end and an outer portion of the end, wherein the annular groove is configured to eliminate radial deflection of the inner portion of the end when flexible body undergoes pressure from the at least one clamp.
摘要:
A mechanical pipe coupling is formed of segments attached end to end to surround a central space. Each segment has a circumferentially extending cavity facing the central space flanked by arcuate keys which project toward the central space. Two arcuate shoulder surfaces are positioned on each segment. The arcuate shoulder surfaces face the central space and are positioned in spaced relation on opposite sides of the cavity between the cavity and the arcuate keys. The arcuate shoulder surfaces are angularly oriented with respect to an axis perpendicular to a plane containing the segments. The coupling is used to couple pipe elements having a circumferential ring located at the ends of the pipe elements. The angular orientation of the arcuate shoulder surfaces provides flexibility to the joint. A method of joining pipe elements having circumferential rings is also disclosed.
摘要:
A flange apparatus operable to connect the discharge of a plumbing fixture to the waste drain pipe of a drainage system. In an embodiment, the flange apparatus includes a flange and a flexible sleeve disposed through a central opening of the flange, in which a first portion of the flexible sleeve is seated on the flange. The flange further includes arm portions, each having an aperture defined therethrough. The surfaces of the apertures are substantially smooth, and the apertures are operable to receive fasteners. In an embodiment, the arm portions may be made of threadable materials, and the fasteners may have thread-forming fasteners such that threads are formed in the arm portions when the thread-forming fastener is received in the aperture of the arm portions.
摘要:
Aircraft including a powerplant mounted on an airframe and a rotor/wing rotatably mounted on the airframe. The rotor/wing has multiple blades extending outward from roots adjacent the airframe to tips opposite the roots and having internal conduits extending between inlets adjacent the roots and downstream outlets. The aircraft also includes multiple intermediate ducts having upstream ends including flanges and downstream ends slidably and pivotally connected to corresponding blade inlets. Moreover, the aircraft includes a manifold having an upstream end in fluid communication with the powerplant and multiple downstream ends including flanges connected to upstream ends of corresponding intermediate ducts. The aircraft further includes multiple covers connected to corresponding manifold flanges and covering corresponding intermediate duct flanges. The aircraft also includes multiple absorbers positioned between corresponding intermediate duct flanges and manifold flanges and between the intermediate duct flanges and corresponding covers to control movement of the intermediate duct flanges.
摘要:
A mechanical pipe coupling permitting relative axial, torsional and angular deflections between pipes joined together by the coupling is disclosed. Rings, each having a greater outer diameter than the pipe, are attached to each end of the pipes to be joined. Each ring has a circumferential groove that receives an O-ring seal. A band is positioned coaxially around the rings. The band has an inwardly facing surface that sealingly engages the O-rings. A housing is clamped around the rings and the band. The housing has first inwardly facing shoulders that engage the rings and limit the axial and angular displacement of the pipes within the housing, and second shoulders that engage end faces of the band.